000
00273nam a2200121Ia 4500
008
220201s1969 xx 000 0 eng d
082
_a
692.5
_b
DUT
100
_a
Dutta, B. N.
245
0
_a
Estimating and costing
260
_a
Lucknow
_c
1969
300
_a
848
942
_2
ddc
999
_c
15769
_d
15769